Itaconic anhydride
Also known as: Methylenesuccinic anhydride, 2-Methylenesuccinic anhydride, Dihydro-3-methylene-2,5-furandione, 2-Methylenebutanedioic anhydride, 2-methylidenebutanedioic anhydride, 3,4-Dihydro-3-methylene-2,5-furandione, Methylenesuccinic acid anhydride
Itaconic anhydride (CAS 2170-03-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H4O3 and a molecular weight of 112.08300 g/mol. Key properties include a melting point of 66-68 °C(lit.), a boiling point of 114-115 °C12 mm Hg(lit.), a density of 1.26 g/cm3 and a flash point of 114-115°C/12mm. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2170-03-8
- Jingsj CID
- J-42159-0
- Molecular Formula
- C5H4O3
- Molecular Weight
- 112.08300 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 66-68 °C(lit.) |
|---|---|
| Boiling Point | 114-115 °C12 mm Hg(lit.) |
| Density | 1.26 g/cm3 |
| Flash Point | 114-115°C/12mm |
| Exact Mass | 112.01600 |
| PSA | 43.37000 |
| LogP | 0.01610 |
| Refractive Index | 1.517 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2917190090 |
|---|---|
| Summary | 2917190090 acyclic polycarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Itaconic anhydride?
The CAS number of Itaconic anhydride is 2170-03-8.
What are the molecular formula and molecular weight of Itaconic anhydride?
Itaconic anhydride has molecular formula C5H4O3 and molecular weight 112.08300 g/mol.
Is Itaconic anhydride hazardous?
Itaconic anhydride has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Itaconic anhydride?
For Itaconic anhydride, Upstream Products: Itaconic acid, Citric acid, Aconitic acid; Downstream Products: Citraconic acid, Methylsuccinic anhydride, 4-(Benzyloxy)-2-methylene-4-oxobutanoic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Itaconic anhydride (CAS 2170-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-42159-0 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.